<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
          table {
            border-collapse: collapse;
          }

          table td {
            padding: 10px;
            text-align: center;
          }

          tr:nth-child(even) {
            background-color: #f2f2f2; /* 偶数行背景色 */
          }

          td:nth-child(3) {
            color: red; /* 第3列文字红色 */
          }

          tr:first-child td:first-child {
            font-size: 30px; /* 第一个单元格文字大小30px */
          }

          tr:last-child td:last-child {
            font-weight: bold; /* 最后一个单元格文字加粗 */
          }
</style>
</head>
<body>

</body>


<table border="2" cellspacing='0'>

    <tr>

        <td>sds</td>

        <td>s</td>

        <td>dd</td>

        <td>sds</td>

    </tr>

    <tr>

        <td>cd</td>

        <td>sc</td>

        <td>adc</td>

        <td>sa</td>

    </tr>

    <tr>

        <td>dcd</td>

        <td>sdas</td>

        <td>sdds</td>

        <td>d</td>

    </tr>

    <tr>

        <td>dsd</td>

        <td>asdsa</td>

        <td>ddsv</td>

        <td>sd</td>

    </tr>

    <tr>

        <td>ssa</td>

        <td>sd</td>

        <td>sad</td>

        <td>vds</td>

    </tr>

    <tr>

        <td>sad</td>

        <td>ssa</td>

        <td>d</td>

        <td>sdsa</td>

    </tr>

</table>
</html>